| Issue |
E3S Web Conf.
Volume 207, 2020
25th Scientific Conference on Power Engineering and Power Machines (PEPM’2020)
|
|
|---|---|---|
| Article Number | 01026 | |
| Number of page(s) | 5 | |
| Section | Thermal Equipment, Heat and Mass Transfer Processes | |
| DOI | https://doi.org/10.1051/e3sconf/202020701026 | |
| Published online | 18 November 2020 | |
Adaptation of activated sludge with anammox to low temperatures
Moscow State University of Civil Engineering, Department of Water Supply and Sanitation, 26 Yaroslavskoye shosse, 129337 Moscow, Russia
* Corresponding author: GulshinIA@mgsu.ru
The article presents the results of evaluating the ability of activated sludge, saturated with anammox bacteria, to adapt to mesophilic and lower temperature operating conditions. As the main temperature regimes, temperatures of 30, 25, 15, and 13°C were selected. The system has demonstrated stable operation at temperatures about 15°C with the highest degree of purification for ammonium nitrogen - 0.33 mg/L. At the same time, the concentration of nitrites reached 0.07 mg/L taking into account forced nitration. An additional increase in the efficiency of the system requires structural changes in the adopted technological scheme of the bioreactor, however, the introduction of an internal system of recirculation of attached biomass (with load) inside the anammox compartment is considered as an essential element of the system that ensures stability.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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